Calcium

    • Product Name: Calcium
    • Alias: Ca
    • Einecs: 231-179-5
    • Mininmum Order: 1 g
    • Factroy Site: Yudu County, Ganzhou, Jiangxi, China
    • Price Inquiry: admin@ascent-chem.com
    • Manufacturer: Ascent Petrochem Holdings Co., Limited
    • CONTACT NOW
    Specifications

    HS Code

    611764

    Name Calcium
    Chemical Symbol Ca
    Appearance Dull gray, silvery metal
    Density 1.54 g/cm3
    Melting Point 842 °C
    Boiling Point 1484 °C
    Electronegativity 1.00 (Pauling scale)
    Category Alkaline earth metal
    State At Room Temperature Solid
    Standard State Solid
    Thermal Conductivity 201 W/mK

    As an accredited Calcium factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Calcium, 500g, is packaged in a sealed, labeled HDPE bottle with a tamper-evident cap for safe, moisture-resistant storage.
    Shipping Calcium metal should be shipped in tightly sealed containers, often under mineral oil or an inert atmosphere to prevent oxidation. It is classified as a hazardous material and must comply with relevant regulations. Packages must be clearly labeled, handled carefully, and stored away from moisture and incompatible substances during transit.
    Storage Calcium should be stored in a tightly sealed container under an inert atmosphere, such as argon or nitrogen, to prevent reaction with moisture or air. It should be kept in a cool, dry, and well-ventilated area, away from acids, halogens, and oxidizing agents. Proper labeling and secondary containment are recommended to minimize risk of accidental exposure or reaction.
    Application of Calcium

    Applications of Calcium in Industrial Manufacturing

    Our proprietary calcium ingredients consistently deliver controlled purity and performance, critical for demanding downstream sectors. The following segments highlight distinct industrial applications, process routes, safety standards, and end-use products associated with calcium as a chemical raw material.

    1. Food Fortification and Processing

    Food processors rely on calcium compounds such as calcium carbonate and calcium citrate to enhance nutritional value and improve texture in bakery, dairy, and beverage products. Manufacturers select particle size and solubility based on the target recipe, optimizing both mouthfeel and mineral availability. Each food application requires alignment with national food additive regulations and clear declaration on finished goods labeling. The integration typically involves blending with dry premixes or adding directly during wet mixing steps, strictly under hygienic control to meet food-grade requirements. Finished fortified foods appeal to health-conscious markets by meeting daily recommended intake levels.

    Industry compliance standards

    • FAO/WHO Codex Alimentarius – General Standard for Food Additives (CODEX STAN 192-1995)
    • European Regulation (EC) No 1333/2008 on food additives
    • US FDA 21 CFR 184.1191 (Calcium carbonate GRAS status)
    • China GB 2760-2022 National Food Safety Standard

    Typical usage ratio

    • Bakery flour premixes: 0.5% to 1.2% by weight, adjusted for enrichment targets
    • Dairy products: 0.1% to 0.5% for texture and fortification
    • Functional beverages: 0.02% to 0.15%, based on solubility and flavor profile

    Downstream process integration

    • Added during dry or liquid batch blending with strict feed accuracy
    • Subject to in-line particle size control and metal detection
    • Documentation with full traceability for each lot

    Final product types

    • Calcium-fortified bread and pastries
    • Nutritionally enhanced yogurt, cheese, and milk drinks
    • Enriched fruit juices and mineral waters
    • Infant and clinical nutrition powders

    2. Pharmaceutical Tablet and Supplement Production

    Tablet manufacturers utilize high-purity calcium salts for direct compression, granulation, and tablet coating processes. GMP protocols demand precise material identity, trace-level impurity disclosure, and consistent particle morphology for accurate dosing. Our specialized screening and polishing steps ensure optimal blendability and tablet hardness while supporting both monohydrate and anhydrous grade release forms. Compliance with up-to-date pharmacopeias is mandatory, with batch-level COAs validated for every production run. Final supplement tablets and chewables target consumer segments requiring reliable elemental dosage forms with minimized heavy metal content.

    Industry compliance standards

    • USP–NF (United States Pharmacopeia – National Formulary)
    • Ph. Eur. (European Pharmacopoeia)
    • ICH Q7 Good Manufacturing Practice Guidance for Active Pharmaceutical Ingredients
    • China Pharmacopoeia (ChP)

    Typical usage ratio

    • Multivitamin/mineral tablets: 10% to 60% total tablet mass, based on calcium form and tablet size
    • Effervescent tablets: 15% to 30%, calculated against acid/base ratios
    • Chewable tablets: 25% to 40%, depending on target dose and excipient compatibility

    Downstream process integration

    • Direct blending into powder mixes for wet or dry granulation
    • Compression in high-speed rotary tablet presses
    • Optional use in film and sugar coating baths for chewable dosage

    Final product types

    • Dietary supplement tablets (elemental calcium)
    • Calcium-based effervescent drink tablets
    • Pharmaceutical granules and chewables
    • Combined mineral capsules

    3. PVC Plastics Manufacturing as a Filler and Stabilizer

    Polyvinyl chloride (PVC) compounders incorporate ground calcium carbonate to enhance mechanical strength, reduce polymer cost, and improve processability in both rigid and flexible PVC applications. During the dry blending, dispersion, and extrusion phases, calcium also functions as a process stabilizer by neutralizing residual acidity, limiting thermal degradation, and modulating rheology. Quality control includes surface coating compatibility, narrow particle size distribution, and extremely low water content. Finished polymer goods showcase extended life-cycle, reduced brittleness, and regulatory compliance for end-use exposure limits.

    Industry compliance standards

    • EN 71-3:2019 (Safety of Toys – Migration of certain elements for toy plastics)
    • RoHS Directive 2011/65/EU (Restriction of Hazardous Substances in Electrical and Electronic Equipment)
    • ASTM D1784 (Standard specification for rigid PVC compounds)
    • ISO 9001 certified manufacturing

    Typical usage ratio

    • Rigid PVC: 15% to 45% by weight, fine-tuned for density and cost
    • Flexible PVC cables: 5% to 15%, adjusted for elongation and softness
    • PVC pipes and fittings: 10% to 35% for impact strength and processing speed

    Downstream process integration

    • Inline dosing during high-shear mixing of PVC powders
    • Continuous feeding into twin-screw extruders
    • Quality monitoring at compounding and final shaping stages

    Final product types

    • PVC pipes, conduits, and fittings
    • Window and door profiles
    • Flexible electrical cable sheathing
    • Floor and wall covering sheets

    4. Paper Manufacturing as a Coating and Filler Pigment

    Pulp and paper producers depend on fine and ultra-fine ground calcium carbonate to improve printability, brightness, and opacity in coated and uncoated paper grades. The addition occurs during both the wet end of papermaking and as a component in pigment-slurry for surface coating. Each process step evaluates pH neutrality, dispersion stability, and interaction with retention agents to ensure no adverse effects on runnability or recyclability. Finished papers meet exacting whiteness and smoothness targets for the growing graphic and packaging segments, with ongoing compliance to regional environmental and consumer safety regulations.

    Industry compliance standards

    • EN 646 (Determination of color fastness in Food Contact Paper & Board)
    • ISO 12625 (Tissue Paper & Tissue Products – General Test Methods)
    • REACH Regulation (EC) No 1907/2006 for chemical safety
    • FDA 21 CFR 176.170 (Paper additives safe for direct food contact)

    Typical usage ratio

    • Uncoated fine paper: 8% to 25% filler by weight, targeting opacity
    • Coated graphic paper: 15% to 35% as coating pigment, based on finished brightness specs
    • Tissue grades: typically 3% to 12% to balance softness and absorption

    Downstream process integration

    • On-machine mixing into pulp slurry before sheet formation
    • Formulation into aqueous pigment slurries for surface application
    • Rigorous monitoring of slurry solids and particle dispersion

    Final product types

    • High-brightness office and copier paper
    • Coated magazine and art printing paper
    • Corrugated packaging liners and folding boxboard
    • Tissue and hygiene paper sheets

    5. Construction and Drymix Mortar Production

    Producers of mortar, ready-mix plasters, and self-leveling underlays employ ground calcium carbonate as a rheology modifier and volumetric extender. The mineral balances sand aggregate grading and interacts with cement hydration chemistry, producing smoother finishes and improved workability for installers. Formulators optimize particle size and surface area to maintain consistent flow and set time while complying with strict certification schemes for structural recreation and durability. Downstream batching requires highly controlled dosing, often with pre-blended drymixes for direct use at construction sites. Certified products meet safety, thermal insulation, and fire performance criteria.

    Industry compliance standards

    • EN 998-1:2016 (Specification for Mortars for Masonry – Rendering and plastering mortars)
    • EN 197-1:2011 (Cement – Part 1: Composition and conformity criteria for common cements)
    • ASTM C91 (Standard Specification for Masonry Cement)
    • ISO 14001 Environmental Management Certification

    Typical usage ratio

    • Drymix mortars: 10% to 30% by mass, adjusted for compressive strength and finish
    • Floor screeds and self-leveling compounds: 5% to 18%, balancing flow and early strength
    • Gypsum-based plasters: 8% to 22%, for sand reduction and smoothness

    Downstream process integration

    • Mixer loading with aggregate, binder, and additives per batch formula
    • Process control for moisture, workability, and application time
    • Bulk or bagged shipment to applicators and DIY segments

    Final product types

    • Pre-mixed masonry and tile adhesives
    • Self-leveling underlayments
    • Lightweight plasters and renders
    • Thermal- and fire-resistant wallboards

    6. Glass Manufacturing as a Flux and Stabilizer

    Industrial glassmakers depend on calcium oxide (lime) as a crucial flux and stabilizer in the melting batch with silica and sodium oxide. The calcium source prevents devitrification and controls viscosity during glass formation, supporting efficient shaping and annealing. Stringent raw material quality ensures minimal contaminants, especially iron and magnesium, which affect color and transmission properties of specialty glass. The dosing rate and particle fineness are precisely matched to furnace and product design. Final glass products achieve required hardness, chemical durability, and clarity for architectural, container, and specialty applications.

    Industry compliance standards

    • ASTM C1036-21 (Standard Specification for Flat Glass)
    • EN 572-1:2012 (Glass in Building – Basic Soda Lime Silicate Glass)
    • ISO 9001 for Quality Management in glass production lines
    • REACH Annex XVII – Restrictions on use of heavy metals

    Typical usage ratio

    • Float and container glass batches: calcium oxide at 10% to 12% by mass of total batch
    • Specialty and fiber glass: 5% to 15%, adjusted for functional performance and melt chemistry

    Downstream process integration

    • Continuous dosing in batch premix with silica and soda ash
    • Quality control checks for particle size and contamination
    • Melting, refining, and forming in high-temperature float furnaces

    Final product types

    • Architectural float and sheet glass
    • Clear and colored glass bottles and jars
    • Glass wool insulation
    • Technical and laboratory glassware
    Free Quote

    Competitive Calcium prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615365186327

    Email: admin@ascent-chem.com

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    Certification & Compliance
    More Introduction

    Introducing Calcium: Our Perspective from the Factory Floor

    Anyone who has spent years walking the halls of a working chemical plant develops a certain respect for the raw materials that build our world. Calcium has always stood out for its no-nonsense utility and the steady demand that never wavers. Much of what gets built, processed, or created every day owes something to well-made calcium. Having worked with this element through multiple market cycles and technology shifts, I want to explain why our model of calcium remains a mainstay for manufacturers, farmers, and industry managers who pay attention to what goes into their operations.

    Our Model: Engineered with Experience

    We have seen requests for product grades drift over the years, with customers calling for specific mesh sizes, low dust, high surface area, or special reactivity. To match that, our current core calcium model—let me put it simply—is a carefully controlled, high-purity product designed for practical use rather than just meeting a spec on a page. We produce this calcium through a tightly monitored, multi-stage process that starts with locally sourced limestone deposits. After mechanical separation and controlled calcination, we grind the material to offer a fine powder that helps downstream steps go smoother and faster.

    From early on, we committed to high-purity outputs, with typical assays well above 98% Ca content. That extra fraction of purity makes a difference, especially in processes where trace metals or contamination create headaches—think electronic ceramics or pharmaceutical intermediates. In food processing and animal nutrition, our pure calcium helps customers sidestep regulatory and quality-control issues later on. These specs stem not from a marketing checklist, but from decades of working shoulder-to-shoulder with operational folks whose work depends on consistency, reliability, and proof in the final product.

    Spec at a Glance

    Our calcium ships in multiple grades—powder, granular, and micronized. Each grade matches real-world handling needs. The micronized grade, with a particle size down to less than 10 microns, shines in paints and coatings, giving smooth texture and reliable opacity. Granular calcium finds its way into water treatment units, soil conditioners, and glass manufacture. We mill and blend in-house, using equipment that allows us to customize particle size distribution for demanding customers—something that sets us apart from less flexible competitors using imported intermediates.

    Quality checks take center stage along each step. Every run passes a battery of controls including loss on ignition, major and trace element analysis by XRF, and particle size monitoring. On the production floor, sensors help our team keep process swings in check. Nothing gets packed before full results clear our in-house lab.

    Calcium in Use: Insights from the Manufacturer’s Bench

    Calcium holds a reputation as a basic building block, almost invisible behind the scenes. The more time I’ve spent making and supplying it, the more I see how much rides on subtle differences in this white mineral. For glassworks, the right calcium eliminates bubble formation and casting defects. In paper mills, our fine grades act as fillers and pigments that help bring out a superior finish and brightness without jamming the machines. Food processors rely on our product’s traceability—it is used as a firming agent and nutritional supplement, and our process eliminates question marks about heavy metal residues or off-colors that can derail a production run.

    Fertilizer blenders and agronomists ask us for specific particle grades that work with their soil-release schedules. High reactivity and near-zero insolubles make our calcium compatible with both direct soil application and compound fertilizer mixing. During especially wet seasons, customers tell us our product’s free-flowing nature helps them load spreaders even in humid conditions, while some cheaper alternatives cake up or bridge in the bin.

    Industry shifts keep us honest. Environmental controls in flue gas desulfurization and water treatment call for calcium products with near-perfect purity and zero organic content. Years ago, we invested in air separation and filtration at the mill—now, our customers pass stringent discharge tests without sweating unplanned downtime or failed audits. That’s one case where manufacturer’s know-how and foresight pay dividends day after day for end users.

    Why Our Calcium Outperforms Commodity Products

    Markets overflow with calcium from brokers and aggregators. These traders often offer highly variable material that leaves downstream operators dealing with unpredictable handling or inconsistent results. Since we control our process from mine to bag, traceability never falls into question. Ask almost any supervisor who’s run a continuous line—downtime due to poor-quality minerals costs real money.

    We make our calcium in batches calibrated to precise input material. Any impurities get tracked, and lot records run back to the day’s raw stone haul. Our process outcomes tend to beat blended bulk lots from various mines—ours rarely presents color variation, unwanted moisture, or trace-matter issues. One paper factory manager once pointed out that, with crude calcium, they can trace excessive paper breaks and machine stops right back to batch inconsistency. With our calcium, those issues fade from the logbooks.

    Logistics matter in industrial supply chains. We pack our calcium grades in custom liners and moisture-barrier sacks to reduce caking and fines loss in transit. Over the years, we tweaked packing routines after taking feedback from both large paint manufacturers and warehouse crew who see what happens after weeks on the pallet racks. Our calcium opens up clean, pours easily, and limits plant dust, saving headaches for everyone who handles the bag.

    Supporting the Real World: Sectors Built on Dependable Calcium

    I still remember my early factory tours, walking with seasoned plant engineers who often reminded us not to treat calcium as an afterthought. In water treatment plants, calcium acts as a critical pH buffer, helps settle solids, and aids in filtering contaminants. Municipal operators need a fast-dissolving, consistent product. Because our model has pure phases and an engineered mesh, treatment cycles stay on target, freeing staff from compensating for batch-to-batch shifts.

    In agriculture, our calcium serves as both a nutrient and a soil conditioner. Granular and powder types let agronomists tailor broadcast spreading or precision injection, keeping their yearly nutrient budget in check. Especially in temperate-climate farms that battle acidic soils, customers rely on the availability and responsiveness of our product to correct the pH swing and supply root-accessible calcium through the crucial growing window.

    Paint plants need a mineral that scatters light without degrading base colors or paint rheology. Our natural calcium, with its closely controlled grind, maintains brightness, and since we supply it with low residue, paintmakers report reduced pigment flocculation and less need for binder adjustment. What matters in these plants is not just what the specs say, but how the product feels in a hopper and how it complements existing formulations.

    Ceramics producers operate at the intersection of tradition and technology. We work with glazer lines and kiln operators who require near-zero loss on ignition and uniform mineral content—performance that directly influences firing temperatures, glaze integrity, and product pass rates. Here, pure raw calcium helps minimize chemical interaction that leads to blistering and surface discoloration.

    What Sets Us Apart—Manufacturer’s Reliability and Systematic Quality

    Having our own supply chain means no mystery intermediates or hidden variability. We continually invest in plant upgrades, dust collection, and screening technology not because they catch the eye of auditors, but because producers on the receiving end actually notice tighter, more reliable stock. Outbound trucks never leave the site without documented inspection and batch tracing. We keep samples of every run for follow-up, supporting traceability and lessons learned if a customer ever calls with a question.

    Out in the field, we hear from batch plant supervisors, storage managers, and truck drivers who put these systems to the test. Moisture resistance in sacks and reliable granule size keep blending lines moving, avoiding spiraling costs from rework or rejects. Our technical team spends time walking customer lines, working through operational hitches and delivering on-site troubleshooting, not just desk-side recommendations.

    No Substitute for Experienced Sourcing

    Years spent talking to customers have convinced us that purchasing calcium is more than a line item on a budget. Quality failures ripple through batch processes, product warranties, and consumer confidence, whether the application is urban infrastructure, food ingredient, or energy production. Decision-makers need to know that their calcium isn’t just sourced cheaply but matched to their specific process requirements—particle size, moisture, and chemical profile all in line with operational need.

    We guard our reputation by measuring performance the same way our customers do. Digging into production logs, fine-tuning mill equipment, and working through test runs, we make changes that benefit actual users in a hands-on, visible way. When the annual quality audits come, our records track every load by date, batch, and analysis—not some vague origin story or blended inventory. That builds trust and enables long-term business partnerships, not just transactional deals.

    An Eye on Sustainability and the Future

    Environmental demands have climbed higher year after year. As a manufacturer, we recognized early the need to minimize dust, manage energy efficiently, and cut waste. Investments in filter presses, heat recovery, and real-time emissions monitoring now form the backbone of our environmental management system. Our calcium grades—with low trace heavy metal and ultra-low organics—pass the rising bar for responsible sourcing laid out by our largest customers.

    Sustainability is not just a buzzword among our staff. Each upgrade to our plant and supply chain comes after careful review to ensure it helps our product meet tomorrow’s tighter environmental criteria. We have worked with renewable energy partners to reduce the greenhouse footprint of our calcining and grinding process. These efforts go beyond compliance—even mid-size customers now check for sustainable sourcing statements and want figures that back up marketing. Our product stands up to that scrutiny.

    Real Value: Why Direct Manufacturer Supply Benefits Customers

    Dealing directly with us yields clear advantages in dependability and cost management. Third parties sometimes blend or rebag calcium to meet spot demand, losing control of variance. From our plant to your operation, load integrity stays intact—customers know exactly what ships, with no gray zone between production and delivery. Communication lines stay short. Issues get solved directly, not filtered through layers of resellers.

    It’s common to see operators switching away from commodity lots after a bad experience with off-color, wet, or poorly graded calcium. We get called in to audit their process, supply a consistent product, and run side-by-side tests. These collaborations help us update our own standards and provide useful feedback to customers implementing tighter quality assurance protocols.

    Choosing the Right Calcium: Avoiding False Economies

    Many procurement teams chase simple price-per-ton metrics. But as our customers frequently remind us, poor calcium breeds unexpected repair costs, off-spec product, and production downtime. We have seen firsthand how investment in traceable, controlled-quality material pays for itself. For operations where downtime or product recall carries real impact, the best value matches technical performance rather than just price-point.

    Ask the chemical plant engineers who have run their lines for years—small upfront savings with variable calcium often turn into higher cost-per-unit in the long run. Our manufacturing focus keeps the attention where it matters: stable feed, known chemistry, repeatable performance. That peace of mind does not come from chance; it grows from conscious choices in raw material sourcing, plant management, end-user support, and diligent follow-through on every shipment.

    Customer Collaboration and Feedback Drives Progress

    The market’s demands keep shifting, and so we regularly meet with large users and visit customer sites. Years ago, we launched new mesh grades in response to a request from a major European ceramics group. That collaborative approach has led us to develop specialty low-dust calcium for food processors, and more recently, offer certified allergen-free batches for sensitive applications. As operator requirements change, we adjust our protocols, introduce updated packaging, and include new analysis in our standard reports based on real-life challenges our customers face.

    Over time, this hands-on approach fostered a cycle of continuous improvement. New suppliers enter the market every year, but our customers know that with us, every product batch has a story—matched to a production shift, logged samples, and tracked performance outcomes. That legacy is not just a marketing angle; it forms a foundation for real operational confidence in those who use our calcium to deliver results every day.

    How We See Calcium’s Role Going Forward

    Looking forward, the landscape for chemical and mineral inputs will only grow more demanding. Regulatory requirements, sustainability targets, and customer audits push every producer to set new benchmarks for accountability and process transparency. As a direct manufacturer, we meet these challenges head-on, knowing that our capacity for adaptation flows from years of discipline and listening to end users. Reliable supply, clear product traceability, and technical support—these strengths push our calcium ahead of alternatives in the market.

    Calcium might seem like a commodity at first glance. In the hands of experienced producers, though, it becomes a product with subtle strengths—matching real production needs, supporting industry trends in safety and quality, and standing up to both old and new regulatory scrutiny. From our team’s vantage point—from process engineer to logistics manager—we take pride in measures that benefit both the industrial user looking for process stability and the consumer trusting a safe, high-quality end product.

    Final Thoughts: A Manufacturer’s Assurance

    Making calcium is not about chasing novelty or exotic specs. It comes down to long-term reliability, operational discipline, and a close connection to customers and their changing priorities. In a market crowded with short-term offerings and generic blends, working directly with us gives users assurance that their calcium comes straight from a manufacturer with roots, knowledge, and accountability running through every bag. For those who measure value in true material performance, that dedication delivers results—batch after batch, year after year.

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